CN105058835A - Process for manufacturing molded furniture component with straw and mold adopted therein - Google Patents
Process for manufacturing molded furniture component with straw and mold adopted therein Download PDFInfo
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- CN105058835A CN105058835A CN201510425654.3A CN201510425654A CN105058835A CN 105058835 A CN105058835 A CN 105058835A CN 201510425654 A CN201510425654 A CN 201510425654A CN 105058835 A CN105058835 A CN 105058835A
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Abstract
The invention discloses a process for manufacturing a molded furniture component with straw and a mold adopted therein. The process comprises the steps of material preparation, sizing treatment, paving , pre-pressing, hot-pressing, cooling, curing and trimming. The wheat and rice straw serves as the raw material. Glue is formed by blending of isocyanate resin and acetone. Pressing mass is 50-100 kg during pre-pressing. Pressure is controlled to be 3.5 MPa during hot-pressing. Mold pressing temperature is about 125 DEG C, and mold pressing time is 50 s/mm. Manufacturing operation is easy, the product has a smooth surface and an accurate size, effectiveness is higher specially for products in complicated shapes, time and labor are saved, and performance is excellent. The mold is suitable for ordinary hot presses. By the adoption of the mold, scientific techniques and parameters are provided for manufacturing the furniture component through straw mold pressing, the cost of straw furniture is reduced, the performance of the furniture component manufactured through straw mold pressing is effectively improved, and the physical and chemical indicators of the furniture component accord with the values specified in GB/T21723-2008.
Description
Technical field
The invention belongs to material and production of articles technical field, relate to the technique and the mould thereof that adopt stalk material to manufacture furniture shaped component.
Background technology
Adopt stalk material compression molding furniture component mainly powdery or fibrous glue mixing stalk material slab to be put into the mold cavity of forming temperature, then make it shaping by pressurization and solidify, forming fine and close stalk material molding.Not only dimensional accuracy is high for the stalk furniture component of employing compression molding, and surface smoothness is good, and speed of production is fast, is conducive to realizing specialization, mass and automated production, can reaches and reduce goods price, the object of lifting quality of item.Suitable textured pattern is conducive to the aesthetic and the added value that promote furniture simultaneously.
But current stalk material furniture is main or produce with stalk board, generally need through sawing sheet, the operations such as milling type, punching, fluting, veneer, covering with paint, not only production efficiency is low, and production cost is higher, is unfavorable for that playing stalk material is worth.
Summary of the invention
Goal of the invention: for the deficiencies in the prior art, the object of this invention is to provide a kind of technique adopting stalk material formed fitment component, the features such as possess production operation easy, not only product surface is bright and clean, and size is accurate.Another object of the present invention is to provide the mould of the technique of above-mentioned employing stalk material formed fitment component.
Technical scheme: in order to realize foregoing invention object, the technical solution used in the present invention is:
Adopt a technique for stalk material formed fitment component, comprise get the raw materials ready, applying glue, mat formation, precompressed, hot pressing, cooling, health and trimming process step; Wherein, raw material is rice wheat straw, and glue is isocyanate resin and acetone is composite forms, and the pressurization quality of precompressed is 50 ~ 100kg, and hot pressing is controlled pressure 3.0 ~ 3.5MPa, molding temperature 125 ~ 130 DEG C, time 40 ~ 60s/mm.
The technique of described employing stalk material formed fitment component, concrete steps are as follows:
1) get the raw materials ready: collect rice wheat straw, remove impurity and dry, make its moisture content 12 ~ 15%, then cut off, pulverize in the crushed straw aggregate of microscler state; Rice wheat straw particle proportioning (mass ratio) is between 3:7 ~ 7:3;
2) applying glue: adopt isocyanate resin, and use equivalent acetone diluted; Utilize high pressure air rifle glue and crushed straw aggregate to be stirred, resin added (mass ratio of glue and crushed straw aggregate) is 5 ~ 9%, glue mixing 8 ~ 10 minutes;
3) embryo is organized: adopt homogeneous method of mating formation to mat formation in a mold slab, rear pressurization quality completed by slab is 50 ~ 100kg precompressed, and pressuring method is press perpendicular;
4) hot pressing: mould and slab are sent in hot press together, controlled pressure 3.0 ~ 3.5MPa, molding temperature about 125 ~ 130 DEG C, time 40 ~ 60s/mm.
5) cooling and health: slab is first cooled to normal temperature after taking off in mould, and then under ambient temperature and moisture environment, health 2 ~ 3 days in fully sheathed case, until molding wetting balance;
6) deburring: utilize saw, carries out deburring to slab surrounding.
In step 1), in microscler state be long 10 ~ 35mm, wide 1.2 ~ 3.3mm.
In step 3), adopt polytetrafluoroethylene (PTFE) paper isolation slab and mould.
The technique of described employing stalk material formed fitment component, the slab density 0.8 ~ 1.0g/cm of preparation
3.
The mould of the technique of described employing stalk material formed fitment component, comprise mold, bed die and connector, be provided with platform at two sides of mold, between the platform of both sides, be provided with the arcwall face of evagination, platform is provided with connecting hole, arcwall face is provided with decorative pattern; Be provided with at two sides of bed die the lower platform matched with platform equally, between two lower platforms, be provided with inner concave, inner concave and arcwall face match, and with the use of; Between mold and bed die, establish connector 3 to connect.
The mould of the technique of described employing stalk material formed fitment component, for aluminium alloy makes mould, aluminium alloy model is 6061-T651; Mold surface finish is 1.6um.
Described decorative pattern (14) is waveform decorative pattern.
Beneficial effect, compared with prior art, the present invention has the following advantages: production operation of the present invention is easy, and not only product surface is bright and clean, and size is accurate, and particularly to complex-shaped goods, its meaning is more obvious, time saving and energy saving, and performance is remarkable.This mould, be applicable to common hot press, for mold pressing stalk furniture component provides process and the parameter of science, be conducive to the cost reducing stalk furniture, effectively improve the performance of mold pressing stalk furniture component, its every physical and chemical index meets the setting of GB/T21723-2008.
Accompanying drawing explanation
Fig. 1 is the structural representation of mould;
Fig. 2 is the explosive view of mould.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further illustrated.
Embodiment 1
Adopt the mould of the technique of stalk material formed fitment component, structure as depicted in figs. 1 and 2, critical piece comprises mold 1, bed die 2 and connector 3, platform 12 is provided with at two sides of mold 1, the arcwall face 11 of evagination is provided with between both sides platform 12, platform 12 is provided with connecting hole 13, arcwall face 11 is provided with decorative pattern 14, decorative pattern 14 can be the various shapes such as waveform.Be provided with at two sides of bed die 2 lower platform 22 matched with platform 12 equally, be provided with inner concave 21 between two lower platforms 22, inner concave 21 and arcwall face 11 match, and with the use of; When specifically using, formed fitment construction material being put into bed die 2, then covering mold 1, and between mold 1 and bed die 2, establish connector 3 to connect, after exerting pressure, just can make formed fitment molding component.
Wherein, mold 1, bed die 2 are aluminium alloy and are made, and aluminium alloy model is 6061-T651; Mold surface finish is 1.6um.
Embodiment 2
Adopt a technique for stalk material formed fitment component, comprise get the raw materials ready, applying glue, mat formation, precompressed, hot pressing, cooling, the operation such as health and deburring, concrete steps are as follows:
1) get the raw materials ready: collect rice wheat straw, remove earth impurity etc., and dry, make its moisture content about 12 ~ 15%, then cut off, pulverize in the crushed straw aggregate of microscler state (long 10mm ~ 35mm, wide 1.2mm to 3.3mm).
2) applying glue: adopt isocyanate resin (poly methylene poly phenyl poly isocyanate, MDI), and dilute with equivalent acetone (analyzing pure).Utilize high pressure air rifle glue and crushed straw aggregate to be stirred, resin added (mass ratio) is 5%, glue mixing 8 ~ 10 minutes.Rice wheat straw particle proportioning (mass ratio) is between 3:7 ~ 7:3, and the target slab density of compacting is about 0.85g/cm
3.
3) embryo is organized: adopt polytetrafluoroethylene (PTFE) paper (for the hot pressing demoulding) to isolate slab and mould.Homogeneous is adopted to mat formation method when mating formation.Slab needs precompressed after completing, and makes slab closely knit, and pressurization quality is 50 ~ double centner, and pressuring method is press perpendicular.
4) molding parameters: mould and slab are sent into together in hot press, controlled pressure is about 3.5MPa, molding temperature about 125 DEG C, time 50s/mm.
5) cooling and health: slab is first cooled to normal temperature after taking off in mould, and then under ambient temperature and moisture environment, health 3 days in fully sheathed case, until molding wetting balance.
6) deburring: utilize saw, carries out deburring to slab surrounding.
To the thick product of 12mm of preparation, detect according to national standard method (GB/T17657-2013), its elastic modelling quantity is about 4400MPa, 2h expansion rate of water absorption about 0.76%, interior bond strength is about 0.53MPa, and every physical and chemical index all meets the setting of GB/T21723-2008.
Claims (8)
1. adopt a technique for stalk material formed fitment component, it is characterized in that, comprise get the raw materials ready, applying glue, mat formation, precompressed, hot pressing, cooling, health and trimming process step; Wherein, raw material is rice wheat straw, and glue is isocyanate resin and acetone is composite forms, and the pressurization quality of precompressed is 50 ~ 100kg, and hot pressing is controlled pressure 3.0 ~ 3.5MPa, molding temperature 125 ~ 130 DEG C, time 40 ~ 60s/mm.
2. the technique of employing stalk material formed fitment component according to claim 1, it is characterized in that, concrete steps are as follows:
1) get the raw materials ready: collect rice wheat straw, remove impurity and dry, make its moisture content 12 ~ 15%, then cut off, pulverize in the crushed straw aggregate of microscler state; Rice wheat straw particle proportioning is 3:7 ~ 7:3;
2) applying glue: adopt isocyanate resin, and use equivalent acetone diluted; Utilize high pressure air rifle glue and crushed straw aggregate to be stirred, resin added is 5 ~ 9%, glue mixing 8 ~ 10 minutes;
3) embryo is organized: adopt homogeneous method of mating formation to mat formation in a mold slab, rear pressurization quality completed by slab is 50 ~ 100kg precompressed, and pressuring method is press perpendicular;
4) hot pressing: mould and slab are sent in hot press together, controlled pressure 3.0 ~ 3.5MPa, molding temperature about 125 ~ 130 DEG C, time 40 ~ 60s/mm;
5) cooling and health: slab is first cooled to normal temperature after taking off in mould, and then under ambient temperature and moisture environment, health 2 ~ 3 days in fully sheathed case, until molding wetting balance;
6) deburring: utilize saw, carries out deburring to slab surrounding.
3. the technique of employing stalk material formed fitment component according to claim 2, is characterized in that: in step 1), in microscler state be long 10 ~ 35mm, wide 1.2 ~ 3.3mm.
4. the technique of employing stalk material formed fitment component according to claim 2, is characterized in that: in step 3), adopts polytetrafluoroethylene (PTFE) paper isolation slab and mould.
5. the technique of employing stalk material formed fitment component according to claim 2, is characterized in that: the slab density 0.8 ~ 1.0g/cm of preparation
3.
6. the mould of the technique of employing stalk material formed fitment component according to claim 1, it is characterized in that: comprise mold (1), bed die (2) and connector (3), platform (12) is provided with at two sides of mold (1), the arcwall face (11) of evagination is provided with between both sides platform (12), platform (12) is provided with connecting hole (13), arcwall face (11) is provided with decorative pattern (14); Be provided with the lower platform (22) matched with platform (12) at two sides of bed die (2) equally, be provided with inner concave (21) between two lower platforms (22), inner concave (21) and arcwall face (11) match, and with the use of; Between mold (1) and bed die (2), establish connector (3) to connect.
7. the mould of the technique of employing stalk material formed fitment component according to claim 6, is characterized in that: for aluminium alloy makes mould, aluminium alloy model is 6061-T651; Mold surface finish is 1.6um.
8. the mould of the technique of employing stalk material formed fitment component according to claim 6, is characterized in that: described decorative pattern (14) is waveform decorative pattern.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510425654.3A CN105058835B (en) | 2015-07-20 | 2015-07-20 | A kind of use stalk material manufactures the technique and its mould of furniture shaped component |
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| CN201510425654.3A CN105058835B (en) | 2015-07-20 | 2015-07-20 | A kind of use stalk material manufactures the technique and its mould of furniture shaped component |
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| CN105058835A true CN105058835A (en) | 2015-11-18 |
| CN105058835B CN105058835B (en) | 2017-07-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106042414A (en) * | 2016-05-29 | 2016-10-26 | 王正 | Automobile inner decoration mold-pressed profile preparation technique through wood fiber double mold pressing method |
| CN111761671A (en) * | 2020-07-10 | 2020-10-13 | 郭五连 | Hot-press forming equipment and hot-press forming method for raw materials of ecological wooden door |
Citations (6)
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| CN2380599Y (en) * | 1999-07-22 | 2000-05-31 | 深圳七环机械电子工程技术开发公司 | Scrap-edge-free mould for paper-pulp moulded product |
| CN1356202A (en) * | 2001-12-11 | 2002-07-03 | 南京林业大学 | Process for preparing middle-density rice straw board |
| CN1785625A (en) * | 2005-10-25 | 2006-06-14 | 南京林业大学 | Manufacturing method of large piece wood shaving laminated material |
| CN103264419A (en) * | 2013-04-24 | 2013-08-28 | 南京林业大学 | Composite component of restructured bamboos and straws and production method of composite component |
| CN203228427U (en) * | 2013-01-21 | 2013-10-09 | 林智勇 | Moulded combined paper roll mould |
| CN203876006U (en) * | 2014-05-28 | 2014-10-15 | 合江巨森索具包装有限公司 | Hot die pressing machine forming a plurality of arc-shaped plates at a time |
-
2015
- 2015-07-20 CN CN201510425654.3A patent/CN105058835B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2380599Y (en) * | 1999-07-22 | 2000-05-31 | 深圳七环机械电子工程技术开发公司 | Scrap-edge-free mould for paper-pulp moulded product |
| CN1356202A (en) * | 2001-12-11 | 2002-07-03 | 南京林业大学 | Process for preparing middle-density rice straw board |
| CN1785625A (en) * | 2005-10-25 | 2006-06-14 | 南京林业大学 | Manufacturing method of large piece wood shaving laminated material |
| CN203228427U (en) * | 2013-01-21 | 2013-10-09 | 林智勇 | Moulded combined paper roll mould |
| CN103264419A (en) * | 2013-04-24 | 2013-08-28 | 南京林业大学 | Composite component of restructured bamboos and straws and production method of composite component |
| CN203876006U (en) * | 2014-05-28 | 2014-10-15 | 合江巨森索具包装有限公司 | Hot die pressing machine forming a plurality of arc-shaped plates at a time |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106042414A (en) * | 2016-05-29 | 2016-10-26 | 王正 | Automobile inner decoration mold-pressed profile preparation technique through wood fiber double mold pressing method |
| CN111761671A (en) * | 2020-07-10 | 2020-10-13 | 郭五连 | Hot-press forming equipment and hot-press forming method for raw materials of ecological wooden door |
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| CN105058835B (en) | 2017-07-04 |
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Effective date of registration: 20180615 Address after: 315040 room 6002, 6 building, 1558 Jiangnan Road, Ningbo new high tech Zone, Zhejiang Patentee after: Zhejiang Dahua Juxian Intelligent Technology Co Ltd Address before: No. 159, dragon pan Road, Xuanwu District, Nanjing, Jiangsu Co-patentee before: ZHEJIANG DASEN FURNITURE CO., LTD. Patentee before: Nanjing Forestry University |
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